TXS1.12F10 SIEMENS

TXS1.12F10  SIEMENS Basis unit

Product  Description：

The TXS1.12F10 serves as a power supply and bus interface module. It is typically mounted on a standard DIN rail and connects to the building automation system via the TX-I/O island bus. Its primary function is to supply $24 \text{ VDC}$ to the subsequent I/O modules on the bus and to extend the communication signal. It is particularly useful in larger installations where the total power consumption of the I/O modules exceeds the capacity of the primary controller's power supply.

Product Parameters

• Operating Voltage: $24 \text{ VAC}$ (nominal) or $24 \text{ VDC}$ depending on the upstream source.

• Output Current: Provides up to $1.2 \text{ A}$ of current to the I/O modules for the $24 \text{ VDC}$ supply.

• Fuse Protection: Features a built-in, replaceable $10 \text{ A}$ fine-wire fuse (T 10A) to protect the power bus and field devices from overcurrent.

• Bus Interface: Integrates with the TX-I/O island bus for data communication and module identification.

• Connection Type: Uses high-quality plug-in terminals for ease of installation and maintenance.

• Degree of Protection: IP20 rating, suitable for installation within a protective control cabinet.

• Operating Temperature: Designed for industrial environments, typically ranging from $-5 \text{°C}$ to $50 \text{°C}$ ($23 \text{°F}$ to $122 \text{°F}$).

Product Advantages

One of the key benefits of the TXS1.12F10 is its Scalability. It allows engineers to expand a control system by adding more modules without worrying about power drops, as it effectively acts as a "booster" for the I/O island. The Plug-and-Play Design means that the base remains wired even if the module is removed, which significantly reduces downtime during service.

The Integrated Fuse Protection is a major safety advantage, isolating faults to a specific segment of the bus and preventing a single short circuit from taking down the entire control panel. Additionally, its Compact Footprint ensures that it occupies minimal space on the DIN rail, which is a premium in modern control cabinets.

Important Considerations and Precautions

When installing the TXS1.12F10, it is vital to perform a Power Load Calculation. You must ensure that the total current draw of the downstream modules does not exceed the $1.2 \text{ A}$ output capacity of this module. If the load is higher, an additional supply module must be introduced.

Always ensure that the Polarity of the $24 \text{ VAC/VDC}$ supply is correct to prevent damage to the internal electronics. Furthermore, because this module has an IP20 rating, it must be installed in a clean, dry environment, such as a locked control panel, to protect it from dust and condensation. Before replacing the $10 \text{ A}$ fuse, always disconnect the power to the unit to avoid electrical arcing or personal injury.

Product Applications

The Siemens TXS1.12F10 is primarily used in Building Management Systems (BMS) and HVAC control applications.

• Large-Scale HVAC Systems: Providing power to I/O modules controlling air handling units (AHUs), chillers, and boilers in commercial buildings.

• Distributed I/O Islands: Extending the reach of a Desigo PX controller to remote parts of a mechanical room.

• Lighting and Blind Control: Powering sensors and actuators in automated lighting and shading systems.

• Critical Facility Monitoring: Supporting I/O modules that monitor environmental conditions in data centers or pharmaceutical storage facilities where reliable power for sensors is mandatory.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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